Dr. Holick says a sweaty forehead is often one of the first noticeable symptoms of a vitamin D deficiency, especially in ...

Jack Dorsey’s new app wants to help you catch some sun — without the burn. The Twitter (now X) co-founder just launched a new iPhone app called Sun Day. It’s designed to track your UV exposure and ...

Oftentimes, a vitamin d test is not needed. Instead, doctors look at overall risk and your symptoms to decide if ...

A new Briefing Paper, Diet in Pregnancy, published by the British Nutrition Foundation, combines the findings of academic research and recommendations from authoritative institutions into a roadmap ...

Typically, people with osteoporosis should maintain a serum 25-hydroxyvitamin D level of 30 ng/mL and supplement daily with 1 ...

Learn how vitamin D supplements may affect your blood pressure, who may benefit most, and how much to take safely—especially ...

Twitter co-founder Jack Dorsey has released a new app that tracks your sun exposure and vitamin D levels. It’s his second app ...

Jack Dorsey launches Sun Day to track UV exposure and Vitamin D intake, following his Bluetooth-based messaging experiment ...

Jack Dorsey is shipping. On Sunday, the Twitter co-founder shared a link on X (formerly Twitter) to a new app called Sun Day, ...

Jack Dorsey has launched Sun Day, an iOS app that tracks UV exposure and estimates vitamin D levels based on location, skin ...

The app is open source, with its code published on GitHub, and it’s the latest in Dorsey’s experimental “weekend builds” — ...

At an emergency doctor's appointment on Christmas Eve 2022, my GP gave it to me with both barrels and told me that I was ...